Consider buying a better controller and headset

I think the new Xbox controller is fantastic. But if you want something a bit fancier, you can always upgrade to the Elite controller, an improved, more advanced piece of controller hardware. It features useful paddles in the rear, as well as improved sticks and rubber grips. I personally haven’t made the leap to an Elite controller—it’s very expensive—but many who have rave about them.
I can, however, personally recommend the excellent official Xbox headset. It’s easy to use, sounds great, and can sync to your Xbox and a different device at the same time. This allows me to talk to people online via Discord on my phone, while still hearing game audio from the Xbox. You can even use the knob on the side of the headset to adjust the balance easily and quickly while playing.